Soap

Have you ever heard someone say, "I'm going to wash your mouth out with soap"? According to Wikipedia the first recorded incidence of this was reported in the Legal Examiner in 1832. A husband and wife were always arguing. One day he came home and found her drunk. He said, "She has had plenty of water to wash with, she ought now to have a little soap." With that said he stuck soap in her mouth. Over the years sticking soap in a child's mouth for using profanity was used as a form of discipline to teach them not to cuss. This is rarely done today due to legal and health concerns.